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Finding the Fourth Proportional to 515,973.17, 774,021.29 and 249,542.23

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Solution

The fourth proportional to 515,973.17, 774,021.29 and 249,542.23 is: 374,343.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,973.17 : 774,021.29 = 249,542.23 : x
  2. Step 2: Convert to fraction form
    515,973.17/774,021.29 = 249,542.23/x
  3. Step 3: Cross multiply
    515,973.17x = 774,021.29 × 249,542.23
  4. Step 4: Simplify right side
    515,973.17x = 193,150,998,774.08
  5. Step 5: Solve for x
    x = 193,150,998,774.08/515,973.17
  6. Step 6: Final answer
    x = 374,343.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.